Connection structure and building roof

Abstract

A connection structure (20) connects a slope beam (6) and a column (5), said connection structure (20) comprising a structure in which the slope beam (6) and the column (5) are connected using a metal fitting (21), which is positioned between a lower surface (6B) of the slope beam (6) and an upper surface (5A) of the column (5), such that the slope beam (6) intersects with the column (5) in a plan view.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a connection structure and a roof of a building. BACKGROUND ART

[0002] A typical roof includes, for example, posts, sloped beams joined to the posts, and rafters arranged parallel to the sloped beams. In an example, the sloped beams are joined to the posts by metal hardware (for example, Patent Literature 1). Patent Literature 1 describes a connection structure (hereinafter, referred to as the typical connection structure) of a sloped beam that connects an end surface of a sloped beam to a side surface of a post. CITATION LIST Patent Literature

[0003] Patent Literature 1: Japanese Laid-Open Patent Publication No. 2004-52464 SUMMARY OF INVENTION Technical Problem

[0004] In a roof, a tie beam is joined to sloped beams. Further, rafters are mounted on the tie beam. Accordingly, when the sloped beams are connected to posts by the connection structure of Patent Literature 1, the sloped beams would be located below the rafters. Such a roof has a thickness resulting from the rafters and the sloped beams in the vertical direction. Solution to Problem

[0005] (1) A connection structure in accordance with one general aspect is for connecting a sloped beam and a post. The connection structure includes a metal connector arranged between a lower surface of the sloped beam and an upper surface of the post. The metal connector connects the sloped beam to the post so that the sloped beam crosses the post in plan view. With this structure, the sloped beam is connected to the post so that the sloped beam crosses the post in plan view. Therefore, the lower surface of the sloped beam is located at a higher position than the upper surface of the post. When the lower surface of the sloped beam is located above the upper surface of the post, the sloped beam may be located at a higher position than the sloped beam of the typical connection structure, which is connected to a side surface of the post. When the position of the sloped beam is relatively high, the thickness of the roof can be reduced. This allows the roof to be made thinner.

[0006] (2) In the connection structure according to aspect (1), the metal connector includes a main body, a first shaft, and a second shaft. The main body contacts the sloped beam and the post. The first shaft is arranged on the main body for insertion into a first insertion hole formed in the sloped beam. The second shaft is arranged on the main body for insertion into a second insertion hole formed in the post.

[0007] With this structure, the main body of the metal connector contacts the sloped beam and the post so that the first shaft and the second shaft restrict movement of the sloped beam with respect to the post. This avoids displacement of the sloped beam with respect to the post.

[0008] (3) In the connection structure according to aspect (2), the main body includes an inclined part and a bottom part. The inclined part includes the first shaft and contacts the lower surface of the sloped beam. The bottom part includes the second shaft and contacts the upper surface of the post. With this structure, the sloped beam is arranged on the metal connector so that the lower surface of the sloped beam is in contact with the inclined part of the main body. This stabilizes the attachment of the sloped beam.

[0009] (4) In the connection structure according to aspect (3), the main body includes a side part extending from the bottom part toward the sloped beam. The side part includes a first support hole configured to receive a shaft member of a support metal connector. The support metal connector is configured to support a transverse beam or a longitudinal beam.

[0010] With this structure, the support metal connector, which is configured to support a transverse beam or a longitudinal beam, is attached to the metal connector. Thus, the support metal connector is readily joined to the post. The support metal connector joined to the post supports a transverse beam or a longitudinal beam.

[0011] (5) In the connection structure according to aspect (4), the second shaft includes a second support hole configured to receive the shaft member of the support metal connector. A first pitch of an array of holes including the first support hole and the second support hole is equal to a second pitch of a plurality of support metal connector holes of the support metal connector.

[0012] With this structure, the first pitch of the array of holes including the first support hole and the second support hole is equal to the second pitch of the support metal connector holes of the support metal connector. Therefore, the support metal connector may be arranged over the metal connector, which is joined to the post, and the post. This allows the support metal connector to be fastened to the post and the metal connector. In this way, the support metal connector can be attached to the post in a state in which the metal bracket is provided on the post.

[0013] (6) A roof of a building includes the connection structure according to any one of aspects (1) to (5). With this structure, the sloped beam is located at a higher position than the sloped beam of the typical connection structure. This allows the roof to be made thinner.

[0014] (7) A roof of a building in accordance with another general aspect of the present disclosure includes a sloped beam and a tie beam. The sloped beam is connected by a connection structure to a post that supports the roof. The tie beam is connected to the sloped beam so that a lower surface of the tie beam is located at the same height as a lower surface of the sloped beam. In the connection structure, the sloped beam is connected to the post by a metal connector arranged between the lower surface of the sloped beam and an upper surface of the post so that the sloped beam crosses the post in plan view.

[0015] With this structure, the lower surface of the sloped beam and the lower surface of the tie beam are located at a position higher than the upper surface of the post. Therefore, the sloped beam and the tie beam are located at a position higher than the sloped beam and the tie beam of the typical connection structure. This reduces the thickness of the roof, thereby allowing the roof to be made thinner.

[0016] (8) The roof according to aspect (7) further includes a ceiling portion that covers the lower surface of the sloped beam and the lower surface of the tie beam. The ceiling portion continuously extends along the sloped beam above and below the post.

[0017] With this structure, the ceiling continuously extends along the sloped beam above and below the post. This improves the design of the ceiling. Also, the ceiling portion is continuous along the sloped beam from an inner side of the post to an outer side of the post. Therefore, the space beneath the roof gives an impression of spaciousness.

[0018] (9) The roof according to aspect (7) or (8) further includes a linking member arranged perpendicular to the sloped beam. The linking member is joined to the sloped beam so that an upper surface of the sloped beam is located at the same height as an upper surface of the linking member. With this structure, the sheathing roof board can be joined to the sloped beam and the upper surface of the linking member. Further, joining the sheathing roof board to the sloped beam and the linking member increases the rigidity of the roof.

[0019] (10) The roof of the building according to any one of aspects (7) to (9) further includes an additional beam arranged perpendicular to the sloped beam. The additional beam is connected to the post so that a lower surface of the additional beam is located below the lower surface of the sloped beam. With this structure, the roof includes the additional beam arranged in a different manner from the tie beam. This allows one portion of the roof to be made thinner and another portion to remain without being made thinner. Advantageous Effects of Invention

[0020] The connection structure and the building roof of the present disclosure allow the roof to be made thinner. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a perspective view of a building in accordance with an embodiment. Fig. 2 is a perspective view of the roof framework of the building shown in Fig. 1. Fig. 3 is a plan view of the roof framework shown in Fig. 2. Fig. 4 is a cross-sectional view of the roof taken along line 4-4 shown in Fig. 2. Fig. 5 is a plan view of a connection structure in accordance with the embodiment. Fig. 6 is a front view of the connection structure in accordance with the embodiment. Fig. 7 is a perspective view of a metal connector. Fig. 8 is a perspective view showing a building of a modified example. Fig. 9 is a perspective view showing the roof framework of a typical building. Fig. 10 is a cross-sectional view of the roof taken along line 10-10 shown in Fig. 9. DESCRIPTION OF EMBODIMENTS

[0022] Embodiment A connection structure 20 and a roof 1 of a building 2 in accordance with an embodiment will now be described with reference to Figs. 1 to 7, 9, and 10.

[0023] Building The building 2 will be described with reference to Fig. 1. As shown in Fig. 1, the building 2 includes the roof 1. The building 2 includes a piloti 3 that defines a piloti space PS. The piloti space PS is provided under the roof 1. The piloti space PS is provided outdoors of the building 2. The piloti 3 may be configured to be a veranda, a terrace, a balcony, or an entrance porch. The application of the piloti 3 is not limited to these examples.

[0024] In an example, the piloti space PS includes a first piloti space PSI and a second piloti space PS2. In plan view, the first piloti space PSI is a space surrounded by a first post 4A, a second post 4B, a third post 4C, and a fourth post 4D. In plan view, the third post 4C and the fourth post 4D are arranged such that a line connecting the third post 4C and the fourth post 4D is parallel to a line connecting the first post 4A and the second post 4B. In plan view, the second piloti space PS2 is located farther from the first post 4A and the second post 4B than the first piloti space PSI is from the first post 4A and the second post 4B. The line connecting the third post 4C and the fourth post 4D divides the piloti space PS into the first piloti space PSI and the second piloti space PS2.

[0025] Roof The structure of the roof 1 of the building 2 will now be described with reference to Figs. 2, 3, and 4. Fig. 4 is a cross-sectional view of the roof 1 taken along line 4-4 shown in Fig. 2. Roof materials are not shown in Fig. 4. The roof 1 is inclined on the building 2. The roof 1 is supported by the first post 4A, the second post 4B, the third post 4C, and the fourth post 4D. The first post 4A, the second post 4B, the third post 4C, and the fourth post 4D are made of, for example, lumber. The first post 4A and the second post 4B are located at an upper side with respect to the inclination of the roof 1. The third post 4C and the fourth post 4D are located below the first post 4A and the second post 4B with respect to the inclination of the roof 1.

[0026] The roof 1 includes a sloped beam 6 and a tie beam 7. The sloped beam 6 and the tie beam 7 are made of, for example, lumber. The sloped beam 6 includes a lower portion that is supported by the third post 4C or the fourth post 4D. The sloped beam 6 includes an upper portion that is supported by a horizontal beam 8 or a post. In the present embodiment, the sloped beam 6 is connected to a post 5 by a connection structure 20. In plan view, the sloped beam 6 extends near an upper surface 5A of the post 5 and crosses the post 5. The sloped beam 6 is connected to the post 5 so that a lower surface 6B of the sloped beam 6 is located above the upper surface 5 A of the post 5. The post 5 includes the third post 4C or the fourth post 4D. Specifically, the lower portion of the sloped beam 6 is connected to the third post 4C or the fourth post 4D by the connection structure 20. The sloped beam 6 crosses the third post 4C or the fourth post 4D so that the lower portion of the sloped beam 6 is located on the third post 4C or the fourth post 4D.

[0027] The tie beam 7 is arranged between two sloped beams 6, which are parallel to each other, and ties the two sloped beams 6. The two sloped beams 6 are linked by one or more tie beams 7. The tie beam 7 includes an end surface that contacts a side face of the sloped beam 6. In an example, an end of the tie beam 7 is fastened to the sloped beam 6 by an L-angle. In plan view, the tie beam 7 is perpendicular to the sloped beam 6. The tie beam 7 is connected to the sloped beam 6 so that a lower surface 7B of the tie beam 7 is located at the same height as the lower surface 6B of the sloped beam 6. A dimension from an upper surface 7A to the lower surface 7B of the tie beam 7 may be equal to a dimension from an upper surface 6Ato the lower surface 6B of the sloped beam 6. In this case, the tie beam 7 is connected to the sloped beam 6 so that the upper surface 7A of the tie beam 7 is flush with the upper surface 6A of the sloped beam 6. In plan view, at least one tie beam 7 is located between the third post 4C and the fourth post 4D.

[0028] The roof 1 includes a horizontal beam 8. The horizontal beam 8 is made of, for example, lumber. In plan view, the horizontal beam 8 is perpendicular to the sloped beam 6. The horizontal beam 8 supports the upper portion of the sloped beam 6, as described above. The sloped beam 6 is connected to the horizontal beam 8. The sloped beam 6 extends obliquely downward from the horizontal beam 8 toward the post 5 as viewed in a first direction DI. The first direction DI extends parallel to the horizontal beam 8 The horizontal beam 8 connects the first post 4 A and the second post 4B. In an example in which the roof 1 has a gable roof structure, the horizontal beam 8 corresponds to a ridge beam 2A of the building 2 shown in Fig. 1. In an example in which the roof 1 is configured to be a lean-to roof, the horizontal beam 8 corresponds to a transverse beam or a longitudinal beam arranged at the part connecting the roof 1 and an outer wall of the building 2.

[0029] The roof 1 further includes a linking member 9. The linking member 9 is arranged between two sloped beams 6, which are parallel to each other, and connects the two sloped beams 6. The two sloped beams 6 are linked by one or more linking members 9. A widthwise dimension of the linking member 9 in the horizontal direction is less than a width-wise dimension of the tie beam 7 in the horizontal direction. The linking member 9 is made of, for example, lumber. In plan view, the linking member 9 is perpendicular to the sloped beams 6. The linking member 9 is joined to the sloped beams 6 so that the upper surface 6A of the sloped beams 6 is located at the same height as an upper surface 9A of the linking member 9. As shown in Fig. 4, the upper surface 6A of the sloped beam 6 and the upper surface 9A of the linking member 9 coincide with a hypothetical line R. The hypothetical line Risa line on which a sheathing roof board 10 is arranged. The linking member 9 is joined to the sloped beams 6 so that a lower surface 9B of the linking member 9 is located above the lower surface 6B of the sloped beams 6. Alternatively, the linking member 9 may be joined to the sloped beams 6 so that the lower surface 9B of the linking member 9 is at the same height as the lower surface 6B of the sloped beams 6. In this case, the lower surface 9B of the linking member 9 is flush with the lower surface 6B of the sloped beams 6.

[0030] The linking member 9 includes a first linking member 9X and a second linking member 9Y. The first linking member 9X is located above the first piloti space PSI. The second linking member 9Y is located above the second piloti space PS2. The second linking member 9Y increases the strength of the eaves edge of the roof 1. The linking member 9 forms part of the roof decking.

[0031] The roof 1 may include a sheathing roof board 10. The sheathing roof board 10 is joined to the upper surface 6 A of the sloped beam 6 and the upper surface 9A of the linking member 9. A roofing material is mounted on an upper surface of the sheathing roof board 10. The sheathing roof board 10 may be joined to the upper surface 7A of the tie beam 7, in addition to the upper surface 6A of the sloped beam 6 and the upper surface 9A of the linking member 9.

[0032] The roof 1 includes a ceiling portion 11. The ceiling portion 11 covers the sloped beam 6 and the lower surface 7B of the tie beam 7. The ceiling portion 11 is formed by a ceiling member. The ceiling member includes, for example, a decorative panel. The ceiling member is joined to the lower surface 6B of the sloped beam 6 along a first reference line RI so as to form the ceiling of the piloti space PS on the lower surface of the roof 1. The first reference line RI is set in correspondence with the lower surface 6B of the sloped beam 6. The ceiling portion 11 continuously extends along the sloped beam 6 above and below the post 5. A first section 11A of the ceiling portion 11 located above the post 5 forms the ceiling of the first piloti space PSI. A second section 1 IB of the ceiling portion 11 located below the post 5 forms the ceiling of the second piloti space PS2. The ceiling portion 11 is configured so that the ceiling of the first piloti space PSI is connected to and flush with the ceiling of the second piloti space PS2.

[0033] In an example, the ceiling portion 11 includes the first section 11A and the second section 1 IB. The first section 11 Ais a section of the ceiling portion 11 located above the post 5 in a direction extending parallel to the sloped beam 6. The first section 11A is located in the first piloti space PSI. The second section 1 IB is a section of the ceiling portion 11 located below the post 5 in the direction extending parallel to the sloped beam 6. The second section 1 IB is located in the second piloti space PS2. The first section 11A is continuous with the second section 11B without any steps as viewed in the first direction DI.

[0034] In addition to a first roof part 1A that is located above the piloti space PS, the roof 1 may further include a second roof part IB that is located above an indoor space. The boundary between the first roof part 1A and the second roof part IB is supported by the sloped beam 6.

[0035] In the case of such a roof 1, the roof 1 further includes an additional beam 12. The additional beam 12 supports the second roof part IB in the vicinity of the eaves edge. The additional beam 12 is connected to a plurality of posts that supports the second roof part IB. The additional beam 12 is located on an extension line of the tie beam 7 that is arranged between the third post 4C and the fourth post 4D. Specifically, the additional beam 12 is continuous with the tie beam 7 in a longitudinal direction of the tie beam 7. A longitudinal direction of the additional beam 12 coincides with the longitudinal direction of the tie beam 7. The sloped beam 6 is arranged between the tie beam 7 and the additional beam 12. In plan view, the additional beam 12 is perpendicular to the sloped beam 6. The additional beam 12 is connected to the post 5 so that a lower surface 12B of the additional beam 12 is located below the lower surface 6B of the sloped beam 6. An upper surface 12A of the additional beam 12 is located below the upper surface 6A of the sloped beam 6. The lower surface 12B of the additional beam 12 is located below the upper surface 5A of the post 5. The additional beam 12 is connected to the post 5 by a support metal connector 13.

[0036] As shown in Figs. 5 and 6, the support metal connector 13 is configured to support a transverse beam or a longitudinal beam that contacts the post 5. In the present embodiment, the support metal connector 13 supports the additional beam 12. The support metal connector 13 includes a support metal connector body 13 A, and an insert 13B configured to be inserted into a slit 12X of the additional beam 12. The insert 13B extends perpendicular to the support metal connector body 13 A. The support metal connector body 13A contacts a side surface of the post 5. The support metal connector body 13 A includes a plurality of support metal connector holes 13C through which shaft members 14 extend. The support metal connector holes 13C are provided in the support metal connector body 13 A at intervals of a second pitch P2.

[0037] The support metal connector 13 includes the shaft members 14. The shaft members 14 include bolts and nuts. The support metal connector 13 is fastened to the post 5 by the shaft members 14. The shaft members 14 include a first shaft member 15, a second shaft member 16, and a third shaft member 17 that are parallel to one another. The first shaft member 15, the second shaft member 16, and the third shaft member 17 are arranged next to one another along the post 5.

[0038] The operation of the roof 1 of the building 2 in accordance with the present embodiment will now be described. Figs. 9 and 10 show the roof framework of a typical roof 50. As shown in Fig. 10, in the typical roof 50, a sloped beam 52 is connected to a side surface of an upper end part of a post 53. Also, a beam 55 is connected to another side surface of the upper end part of the post 53. A rafter 54 is placed on the beam 55 that is connected to the post 53 as described above. Accordingly, the rafter 54 is located upward from the sloped beam 52. In the typical roof 50, the sloped beam 52 and the rafter 54 are significantly displaced from each other in the vertical direction. Therefore, the typical roof 50 is relatively thick in the vertical direction as viewed in a fourth direction D4. The fourth direction D4 corresponds to the first direction DI shown in Fig. 2. On the other hand, in the roof 1 of the present embodiment, the sloped beam 6 is connected to the post 5 so that the sloped beam 6 crosses the post 5 in plan view. Therefore, as viewed in the first direction DI, the sloped beam 6 is located at a higher position than the sloped beam 52 in the typical connection structure. When the sloped beam 6 is located at a relatively high position, the roof 1 may be reduced in thickness. Specifically, the sloped beam 6 crosses the post 5 in plan view such that the lower surface 6B of the sloped beam 6 is located above the upper surface 5A of the post 5. This allows the tie beam 7 to be arranged between two sloped beams 6. Further, the linking member 9, which supports the sheathing roof board 10 instead of the rafter 54, may be arranged between two sloped beams 6. In such a structure in which the sloped beam 6 crosses the post 5 in plan view, members forming the roof framework of the roof 1 may be arranged at the same height as viewed in the first direction DI. Thus, the roof 1 can be made thinner.

[0039] Other operations of the present embodiment will now be described. In the typical building 51, the beam 55 located near the roof 50 is connected to the post 53 such that the lower surface of the beam 55 is located below the lower surface of the sloped beam 52. Therefore, when a ceiling portion 56 is set in accordance with the lower surface of the sloped beam 52 in the typical roof 50, the ceiling portion 56 is not continuous at the position corresponding to the beam 55, as shown in Fig. 10. On the other hand, in the roof 1 of the present embodiment, the sloped beam 6 is connected to the post 5 so that the sloped beam 6 crosses the post 5 in plan view. Therefore, the sloped beam 6 is continuous from the first piloti space PSI to the second piloti space PS2. The tie beam 7 may be connected to the sloped beams 6 so that the lower surface 7B of the tie beam 7 is flush with the lower surface 6B of the sloped beams 6. With such a structure, the ceiling portion 11 of the roof 1 is located at a higher position than the ceiling portion 56 of the typical roof 50. Further, when the ceiling portion 11 is continuous from the first piloti space PSI to the second piloti space PS2, the aesthetic appeal of the roof is improved.

[0040] Connection Structure The connection structure 20 included in the roof 1 will now be described with reference to Figs. 2 to 5. The connection structure 20 includes a structure that connects the sloped beam 6 and the post 5.

[0041] As shown in Figs. 4 and 5, the connection structure 20 includes a first structure in which the sloped beam 6 is connected to the post 5 by a metal connector 21 so that the sloped beam 6 crosses the post 5 in plan view. The first structure connects the lower portion to the sloped beam 6 and the post 5. With the connection structure 20, the sloped beam 6 crosses the post 5 so that the lower surface 6B of the sloped beam 6 is located above the upper surface 5 A of the posts 5. The sloped beam 6 is connected to the post 5 by the metal connector 21 so that the lower surface 6B of the sloped beam 6 is separated from the upper surface 5A of the post 5 by a predetermined distance.

[0042] The connection structure 20 is configured so that the sloped beam 6 extends over a vertical member. The connection structure 20 is configured so that the sloped beam 6 extends over the post 5, which is an example of the vertical member. Specifically, the connection structure 20 connects the sloped beam 6 to the post 5 in a state in which the sloped beam 6 crosses the post 5 so that the lower surface 6B of the sloped beam 6 is located above the upper surface 5 A of the post 5. The connection structure 20 may be configured so that the sloped beam 6 crosses a horizontal member in plan view. In this case, the sloped beam 6 crosses the horizontal member so that the lower surface 6B of the sloped beam 6 is located above an upper surface of the horizontal member.

[0043] The connection structure 20 arranges the sloped beam 6 so that the sloped beam 6 continuously extends along the sloped beam 6 above and below the post 5. The connection structure 20 arranges the sloped beam 6 so that the sloped beam 6 continuously extends from a space defined above the first piloti space PSI to a space defined above the second piloti space PS2.

[0044] As shown in Fig. 4, the connection structure 20 offsets the sloped beam 6 upward with respect to the post 5. When the sloped beam 6 is offset upward, the sloped beam 6 is arranged such that a second reference line R2 extends between the upper surface 6A and the lower surface 6B of the sloped beam 6 as viewed in the first direction DI. The second reference line R2 extends along the lower surface 9B of the linking member 9.

[0045] The connection structure 20 may include a second structure in which the sloped beam 6 is connected to the horizontal beam 8 by an additional metal bracket 22. The second structure connects the upper portion of the sloped beam 6 to the horizontal beam 8. The additional metal bracket 22 contacts an end surface 6C of the upper end part of the sloped beam 6. The additional metal bracket 22 connects the sloped beam 6 to the horizontal beam 8 so that a lower side of the end surface 6C of the sloped beam 6 is located below an upper surface of the horizontal beam 8 as viewed in the first direction DI. With the additional metal bracket 22, the lower side of the end surface 6C of the sloped beam 6 faces a side surface of the horizontal beam 8 as viewed in the first direction DI. The additional metal bracket 22 may be configured to connect the end surface 6C of the sloped beam 6 to an upper surface of the first post 4 A or an upper surface of the second post 4B.

[0046] The operation of the connection structure 20 in accordance with the present embodiment will now be described. In the roof 1 of the present embodiment, the connection structure 20 connects the sloped beam 6 to the post 5 so that the sloped beam 6 crosses the post 5 in plan view. Therefore, the sloped beam 6 is located at a higher position than the sloped beam 52 of the typical connection structure. As a result, the ceiling portion 11 is located at a relatively high position. This improves the aesthetic appeal of the roof 1 as compared with the typical roof 50.

[0047] Metal Connector The metal connector 21 for implementing the connection structure 20 will now be described with reference to Figs. 4 to 7. The metal connector 21 is arranged between the lower surface 6B of the sloped beam 6 and the upper surface 5A of the post 5 so as to connect the sloped beam 6 to the post 5 such that the sloped beam 6 crosses the post 5 in plan view.

[0048] As shown in Fig. 7, the metal connector 21 includes a main body 23, a first shaft 24, and a second shaft 25. The main body 23, the first shaft 24, and the second shaft 25 are made of iron, stainless steel, or the like. The main body 23 contacts the sloped beam 6 and the post 5. The first shaft 24 is arranged on the main body 23. The second shaft 25 is arranged on the main body 23.

[0049] The first shaft 24 is inserted into a first insertion hole 6D formed in the sloped beam 6. The first shaft 24 inserted into the first insertion hole 6D of the sloped beam 6 restricts movement of the sloped beam 6 with respect to the metal connector 21 in a direction orthogonal to the first shaft 24. The second shaft 25 is inserted into a second insertion hole 5B formed in the post 5. The second shaft 25 inserted into the second insertion hole 5B of the post 5 restricts movement of the metal connector 21 with respect to the post 5 in a direction orthogonal to the second shaft 25. The first shaft 24 and the second shaft 25 may be removable from the main body 23. The first shaft 24 and the second shaft 25 may be formed integrally with the main body 23.

[0050] The first shaft 24 includes a first through hole 26. The first through hole 26 extends through the first shaft 24 in a second direction D2. The second direction D2 is orthogonal to the first shaft 24 and the second shaft 25. In a state in which the sloped beam 6 is connected to the post 5, the second direction D2 coincides with the first direction DI. The first through hole 26 of the first shaft 24 is configured to receive a first support pin 26A in a state in which the first shaft 24 is inserted into the first insertion hole 6D of the sloped beam 6. The first support pin 26Ais, for example, a drift pin. In a state in which the first shaft 24 is inserted into the first insertion hole 6D of the sloped beam 6, the first support pin 26A is inserted through a through hole of the sloped beam 6 and the first through hole 26 so as to firmly fasten the metal connector 21 to the sloped beam 6. The first support pin 26A inserted through the through hole of the sloped beam 6 and the first through hole 26 of the first shaft 24 restricts movement of the sloped beam 6 with respect to the metal connector 21 in a direction parallel to the first shaft 24.

[0051] The second shaft 25 includes a second through hole 27. The second through hole 27 extends through the second shaft 25 in a third direction D3. In a state in which the sloped beam 6 is connected to the post 5, the third direction D3 is parallel to the sloped beam 6 in plan view. The third direction D3 is orthogonal to the second direction D2. The second through hole 27 extends orthogonal to the axial direction of the second shaft 25. The second through hole 27 is configured to receive a second support pin 27A in a state in which the second shaft 25 is inserted into the second insertion hole 5B of the post 5. The second support pin 27A is, for example, a drift pin. In a state in which the second shaft 25 is inserted into the second insertion hole 5B of the post 5, the second support pin 27A is inserted through a through hole of the post 5 and the second through hole 27 of the second shaft 25 so as to firmly fasten the second shaft 25 to the post 5. The second support pin 27A inserted through the through hole of the post 5 and the second through hole 27 of the second shaft 25 restricts movement of the metal connector 21 with respect to the post 5 in a direction parallel to the second shaft 25.

[0052] The main body 23 includes an inclined part 28 and a bottom part 29. The inclined part 28 and the bottom part 29 are each formed by, for example, a plate-shaped member. The inclined part 28 and the bottom part 29 are joined to each other by welding or the like and form the main body 23. The inclined part 28 and the bottom part 29 may be formed by bending one plate-shaped member.

[0053] The inclined part 28 contacts the lower surface 6B of the sloped beam 6. The inclined part 28 includes a first connection surface 30. In a state in which the sloped beam 6 is connected to the post 5, the first connection surface 30 extends along the lower surface 6B of the sloped beam 6. In a state in which the sloped beam 6 is connected to the post 5, the first connection surface 30 contacts the lower surface 6B of the sloped beam 6. The inclined part 28 includes the first shaft 24. The first shaft 24 is arranged on the inclined part 28 so as to perpendicularly intersect the first connection surface 30.

[0054] The bottom part 29 contacts the upper surface 5 A of the post 5. The bottom part 29 includes a second connection surface 31. In a state in which the sloped beam 6 is connected to the post 5, the second connection surface 31 extends along the upper surface 5 A of the post 5. In a state in which the sloped beam 6 is connected to the post 5, the second connection surface 31 contacts the upper surface 5 A of the post 5. The bottom part 29 includes the second shaft 25. The second shaft 25 is arranged on the bottom part 29 so as to perpendicularly intersect the second connection surface 31.

[0055] The main body 23 includes a connection part 32. The connection part 32 is formed by bending an end of the inclined part 28 such that the connection part 32 extends from the inclined part 28 toward the bottom part 29. An end of the connection part 32 is connected to the bottom part 29.

[0056] The main body 23 includes a side part 33. The side part 33 extends from the bottom part 29 toward the sloped beam 6. The side part 33 is formed to extend from the upper surface 5 A of the post 5 toward the sloped beam 6 in a state in which the sloped beam 6 is connected to the post 5. The side part 33 is formed by bending an end of the bottom part 29 so that the side part 33 extends from the bottom part 29 toward the inclined part 28. An upper end of the side part 33 is connected to the inclined part 28.

[0057] The side part 33 includes a first support hole 34. The side part 33 includes a first side surface 33Aand a second side surface 33B extending orthogonal to the second direction D2. The first support hole 34 is formed in each of the first side surface 33 A and the second side surface 33B. The first support hole 34 provided in the first side surface 33 A and the first support hole 34 provided in the second side surface 33B have a common centerline Cl. The two first support holes 34 are configured such that the centerline Cl is parallel to the second direction D2. Further, the two first support holes 34 are arranged such that the centerline Cl overlaps centerlines C2 and C3, which will be described below, as viewed in the axial direction of the second shaft 25. The first support holes 34 are configured to receive the shaft member 14 of the support metal connector 13. In the present embodiment, the first shaft member 15 is inserted into the first support holes 34.

[0058] The second shaft 25 may further include a second support hole 35, in addition to the second through hole 27. The second support hole 35 extends through the second shaft 25 in the second direction D2. The second support hole 35 includes a third support hole 35A and a fourth support hole 35B. The third support hole 35A and the fourth support hole 35B are formed in the second shaft 25 and are separated from each other in the axial direction of the second shaft 25. The second support hole 35 is configured to receive the shaft member 14. In the present embodiment, the second shaft member 16 of the shaft member 14 is inserted into the third support hole 35 A of the second support hole 35, and the third shaft member 17 of the shaft member 14 is inserted into the fourth support hole 35B of the second support hole 35.

[0059] A first pitch Pl of an array of holes including the first support hole 34 and the second support hole 35 is equal to the second pitch P2 of the support metal connector holes 13C of the support metal connector 13. The first pitch Pl is the distance from the centerline Cl of the first support hole 34 to the centerline C2 of the third support hole 35 A of the second support hole 35. Also, the first pitch Pl is the distance from the centerline C2 of the third support hole 35 A to the centerline C3 of the fourth support hole 35B. The second pitch P2 is the distance between the centerlines of two support metal connector holes 13C in the support metal connector 13.

[0060] The second support hole 35 is formed in the second shaft 25 so as not to overlap the second through hole 27 in the axial direction of the second shaft 25. In a state in which the sloped beam 6 is connected to the posts 5, the shaft member 14 and the second support pin 27A are separated from each other in the axial direction of the second shaft 25. The second through hole 27 is formed between the third support hole 35A and the fourth support hole 35B in the axial direction of the second shaft 25.

[0061] The operation of the metal connector 21 in accordance with the present embodiment will now be described. The metal connector 21 is arranged between the lower surface 6B of the sloped beam 6 and the upper surface 5 A of the post 5. Thus, the sloped beam 6 may be connected to the post 5 so that the sloped beam 6 crosses the post 5 in plan view. The lower surface 6B of the sloped beam 6 is located above the upper surface 5 A of the post 5 such that the sloped beam 6 crosses the post 5 in plan view. When the metal connector 21 arranges the lower surface 6B of the sloped beam 6 above the upper surface 5A of the post 5, the lower surface 6B of the sloped beam 6 may be located at a higher position than the sloped beam 52 in the typical connection structure.

[0062] The metal connector 21 connects the lower surface 6B of the sloped beam 6 and the upper surface 5 A of the post 5. Therefore, in the connection structure 20, the sloped beam 6 continuously extends along the inclination of the roof 1 above and below the post 5. When the lower surface 6B of the sloped beam 6 is connected to the upper surface 5A of the post 5 by the metal connector 21, no step that corresponds to the upper surface 5 A of the post 5 is formed in the lower surface 6B of the sloped beam 6. Thus, the lower surface 6B of the sloped beam 6 located above the first piloti space PSI is continuous with the lower surface 6B of the sloped beam 6 located above the second piloti space PS2.

[0063] The metal connector 21 having the inclined part 28 connects the lower surface 6B of the sloped beam 6 to the upper surface 5 A of the post 5. The lower surface 6B of the sloped beam 6 includes no step formed by cutting for engagement of the sloped beam 6 with the post 5. That is, the lower surface 6B of the sloped beam 6 is formed as a continuously sloped surface. Such a connection structure 20 eliminates the need to process the lower surface 6B of the sloped beam 6 to form a step formed by cutting for engagement with another member. This improves the manufacturing efficiency of the sloped beam 6.

[0064] Furthermore, the structure in which the lower surface 6B of the sloped beam 6 is a continuously sloped surface has the following advantages. If the lower surface 6B of the sloped beam 6 includes a step formed by cutting, the sloped beam 6 would be positioned in accordance with the step formed by cutting that engages another member. This limits position adjustment of the sloped beam 6 in the longitudinal direction. Accordingly, the lower ends of the sloped beams 6 may be misaligned depending on the positions of the steps formed by cutting that engage another member (for example, post 5). In this respect, in the connection structure 20, the lower surface 6B of the sloped beam 6 has no step formed by cutting. This allows for position adjustment of the sloped beam 6 in the longitudinal direction regardless of the position of a step formed by cutting that engages another member. Accordingly, the lower ends of the sloped beams 6 are readily aligned. In this case, a member may be arranged across the lower ends of the sloped beams 6 that are aligned at the eaves of the roof 1.

[0065] In the second shaft 25, the second support hole 35 extends in the second direction D2, and the second through hole 27 extends in the third direction D3 orthogonal to the second direction D2. Further, the second through hole 27 is arranged at a position differing from the second support hole 35 in the axial direction of the second shaft 25. This avoids interference of the shaft member 14 with the second support pin 27A in a state in which the sloped beam 6 is connected to the post 5. The support metal connector 13 and the metal connector 21 are placed on different side surfaces of the post 5. Further, the shaft member 14 and the second support pin 27A are inserted from different side surfaces of the post 5 in a state in which the sloped beam 6 is connected to the post 5. Thus, the additional beam 12 may be connected to the post 5 by the support metal connector 13. The additional beam 12 may be a tie beam.

[0066] The present embodiment has the following advantages. (1) In the connection structure 20 for connecting the sloped beam 6 and the post 5, the metal connector 21 connects the sloped beam 6 to the post 5 so that the sloped beam 6 crosses the post 5 in plan view.

[0067] With this structure, the sloped beam 6 is connected to the post 5 so that the sloped beam 6 crosses the post 5 in plan view. Therefore, the lower surface 6B of the sloped beam 6 is located at a higher position than the upper surface 5A of the post 5. When the lower surface 6B of the sloped beam 6 is located above the upper surface 5A of the post 5, the sloped beam 6 may be located at a higher position than the sloped beam 52 of the typical connection structure, which is connected to a side surface of the post 53. Therefore, the thickness of the roof 1 can be reduced. In this manner, the roof 1 can be made thinner.

[0068] (2) The metal connector 21 includes the main body 23, the first shaft 24, and the second shaft 25. The main body 23 contacts the sloped beam 6 and the post 5. The first shaft 24 is arranged on the main body 23 for insertion into the first insertion hole 6D formed in the sloped beam 6. The second shaft 25 is arranged on the main body 23 for insertion into the second insertion hole 5B formed in the post 5.

[0069] With this structure, the main body 23 of the metal connector 21 contacts the sloped beam 6 and the post 5 so that the first shaft 24 and the second shaft 25 restrict movement of the sloped beam 6 with respect to the post 5. This avoids displacement of the sloped beam 6 with respect to the post 5.

[0070] (3) The main body 23 includes the inclined part 28 and the bottom part 29. The inclined part 28 includes the first shaft 24 and contacts the lower surface 6B of the sloped beam 6. The bottom part 29 includes the second shaft 25 and contacts the upper surface 5A of the post 5. With this structure, the sloped beam 6 is arranged on the metal connector 21 so that the lower surface 6B of the sloped beam 6 is in contact with the inclined part 28 of the main body 23. This stabilizes the attachment of the sloped beam 6.

[0071] (4) The main body 23 includes the side part 33 extending from the bottom part 29 toward the sloped beam 6. The side part 33 includes the first support hole 34 configured to receive the shaft member 14 of the support metal connector 13. The support metal connector 13 is configured to support a transverse beam or a longitudinal beam that contacts the post 5.

[0072] With this structure, the support metal connector 13, which is configured to support a transverse beam or a longitudinal beam, is attached to the metal connector 21. Thus, the support metal connector 13 is readily joined to the post 5. The support metal connector 13 joined to the post 5 supports a transverse beam or a longitudinal beam.

[0073] (5) The second shaft 25 includes the second support hole 35 configured to receive the shaft member 14 of the support metal connector 13. The first pitch Pl of holes including the first support hole 34 and the second support hole 35 is equal to the second pitch P2 of the support metal connector holes 13C of the support metal connector 13. With this structure, the first pitch Pl of the array of holes including the first support hole 34 and the second support hole 35 is equal to the second pitch P2 of the support metal connector holes 13C of the support metal connector 13. Therefore, the support metal connector 13 may be arranged over the metal connector 21, which is joined to the post 5, and the post 5. This allows the support metal connector 13 to be fastened to the post 5 and the metal connector 21. In this manner, the support metal connector 13 may be joined to the post 5 in a state in which the metal connector 21 is arranged on the post 5.

[0074] (6) The roof 1 of the building 2 includes the connection structure 20. With this structure, the sloped beam 6 is located at a higher position than the typical roof 50. This allows the roof 1 to be reduced in thickness than the typical roof 50. In this manner, the roof 1 can be made thinner.

[0075] (7) The roof 1 of the building 2 includes the sloped beam 6 and the tie beam 7. The sloped beam 6 is connected by the connection structure 20 to the post 5 that supports the roof 1. The tie beam 7 is connected to the sloped beam 6 so that the lower surface 7B of the tie beam 7 is located at the same height as the lower surface 6B of the sloped beam 6. In the connection structure 20, the sloped beam 6 is connected to the post 5 by the metal connector 21 so that the sloped beam 6 crosses the post 5 in plan view.

[0076] With this structure, the lower surface 6B of the sloped beam 6 and the lower surface 7B of the tie beam 7 are located at a position higher than the upper surface 5A of the post 5. Therefore, the sloped beam 6 and the tie beam 7 are located at a position higher than the sloped beam 52 and the tie beam 57 of the typical connection structure. This allows the roof 1 to be reduced in thickness. In this manner, the roof 1 can be made thinner.

[0077] (8) The ceiling portion 11 is provided to cover the sloped beam 6 and the lower surface 7B of the tie beam 7. The ceiling portion 11 continuously extends along the sloped beam 6 above and below the post 5. With this structure, the lower surface 7B of the tie beam 7 is located at the same height as the lower surface 6B of the sloped beam 6. Therefore, the ceiling continuously extends along the sloped beam 6 above and below the post 5. This improves the design of the ceiling. Also, the ceiling portion 11 is continuous along the sloped beam 6 from an inner side of the post 5 to an outer side of the post 5. Therefore, the space beneath the roof 1 gives an impression of spaciousness.

[0078] (9) The linking member 9 arranged perpendicular to the sloped beam 6 is further provided. The linking member 9 is joined to the sloped beam 6 so that the upper surface 6A of the sloped beam 6 is located at the same height as the upper surface 9A of the linking member 9. With this structure, the sheathing roof board 10 can be joined to the sloped beam 6 and the upper surface 9A of the linking member 9. Further, joining the sheathing roof board 10 to the sloped beam 6 and the linking member 9 increases the rigidity of the roof 1.

[0079] (10) The additional beam 12 arranged perpendicular to the sloped beam 6 is further provided. The additional beam 12 is connected the post 5 so that the lower surface 12B of the additional beam 12 is located below the lower surface 6B of the sloped beam 6. With this structure, the roof 1 includes the additional beam arranged in a different manner from the tie beam 7. This allows one portion of the roof 1 to be made thinner and another portion to remain without being made thinner.

[0080] Modified Examples The above embodiment exemplifies, without any intention to limit, applicable forms of the connection structure 20 and the roof 1 of the building 2. The connection structure 20 and the roof 1 of the building 2 may take forms different from the those illustrated in the above embodiment. For example, the structure in the above embodiment may be replaced, changed, or omitted in part or include an additional element. Modified examples of the above embodiment will now be described below.

[0081] (1) A modified example of the roof 1 of the building 2 will be described with reference to Fig. 8. The piloti space PS shown in Fig. 1 does not have to be provided under the roof 1. The roof 1 is, for example, mounted over the interior to the exterior of the building 2. In the present example, an outer wall 40 extends under the tie beam 7 between the third post 4C and the fourth post 4D. A window 41 is arranged in the outer wall 40. The window 41 can be any of a sliding window, a casement window, or the like.

[0082] In the building 2 having the typical connection structure, the beam 55 is laid on the upper part of the outer wall 40. Therefore, the upper side of the window 41 is located below the lower surface of the beam 55. In the present modified example, the tie beam 7 is arranged so that the lower surface 7B of the tie beam 7 is located at the same height as the lower surface 6B of the sloped beam 6, in the same manner as the above embodiment. Accordingly, the lower surface 7B of the tie beam 7 is located at a higher position than that of the roof 50 of the typical connection structure. Therefore, the upper side of the window 41 is located at a relatively high position. This allows for enlargement of the window 41, thereby improving the aesthetic appeal of the building 2.

[0083] (2) The shape of the main body 23 may be changed as long as the main body 23 of the metal connector 21 has a structure for holding the first shaft 24 and the second shaft 25. For example, the main body 23 does not have to include the side part 33.

[0084] (3) The connection structure 20 may be modified as long as the connection structure 20 has a structure in which the sloped beam 6 is connected to the post 5 by the metal connector 21 so that the sloped beam 6 crosses the post 5 in plan view. For example, the connection structure 20 may have a structure in which the sloped beam 6 is directly connected to the horizontal beam 8 without the additional metal bracket 22.

[0085] The present specification discloses the following techniques. [Clause 1] A connection structure for connecting a sloped beam and a post, the connection structure including a metal connector arranged between a lower surface of the sloped beam and an upper surface of the post, in which the metal connector connects the sloped beam to the post so that the sloped beam crosses the post in plan view.

[0086] [Clause 2] The connection structure according to clause 1, in which the metal connector includes a main body that contacts the sloped beam and the post, a first shaft arranged on the main body for insertion into a first insertion hole formed in the sloped beam, and a second shaft arranged on the main body for insertion into a second insertion hole formed in the post.

[0087] [Clause 3] The connection structure according to clause 2, in which the main body includes an inclined part including the first shaft and contacting the lower surface of the sloped beam, and a bottom part including the second shaft and contacting the upper surface of the post.

[0088] [Clause 4] The connection structure according to clause 3, in which the main body includes a side part extending from the bottom part toward the sloped beam, the side part includes a first support hole configured to receive a shaft member of a support metal connector, and the support metal connector is configured to support a transverse beam or a longitudinal beam.

[0089] [Clause 5] The connection structure according to clause 4, in which the second shaft includes a second support hole configured to receive the shaft member of the support metal connector, and a first pitch of an array of holes including the first support hole and the second support hole is equal to a second pitch of a plurality of support metal connector holes of the support metal connector.

[0090] [Clause 6] A roof of a building, the roof including the connection structure according to any one of clauses 1 to 5. [Clause 7] A roof of a building, the roof including a sloped beam connected by a connection structure to a post that supports the roof, and a tie beam connected to the sloped beam so that a lower surface of the tie beam is located at the same height as a lower surface of the sloped beam, in which, in the connection structure, the sloped beam is connected to the post by a metal connector arranged between the lower surface of the sloped beam and an upper surface of the post so that the sloped beam crosses the post in plan view.

[0091] [Clause 8] The roof according to clause 7, further including a ceiling portion that covers the lower surface of the sloped beam and the lower surface of the tie beam, in which the ceiling portion continuously extends along the sloped beam above and below the post.

[0092] [Clause 9] The roof according to clause 7 or 8, further including a linking member arranged perpendicular to the sloped beam, in which the linking member is joined to the sloped beam so that an upper surface of the sloped beam is located at the same height as an upper surface of the linking member.

[0093] [Clause 10] The roof according to any one of clauses 7 to 9, further including an additional beam arranged perpendicular to the sloped beam, in which the additional beam is connected to the post so that a lower surface of the additional beam is located below the lower surface of the sloped beam.

[0094] In the present disclosure, “at least one of A and B” should be understood to mean “only A, only B, or both A and B.” REFERENCE SIGNS LIST

[0095] 1) roof, 2) building, 5) post, 6) sloped beam, 7) tie beam, 9) linking member, 11) ceiling portion, 12) additional beam, 13) support metal connector, 14) shaft member, 20) connection structure, 21) metal connector, 23) main body, 24) first shaft, 25) second shaft, 28) inclined part, 29) bottom part, 33) side part

Claims

1. A connection structure for connecting a sloped beam and a post, the connection structure comprising:a metal connector arranged between a lower surface of the sloped beam and an upper surface of the post, wherein the metal connector connects the sloped beam to the post so that the sloped beam crosses the post in plan view.

2. The connection structure according to claim 1, whereinthe metal connector includes:a main body that contacts the sloped beam and the post;a first shaft arranged on the main body for insertion into a first insertionhole formed in the sloped beam; anda second shaft arranged on the main body for insertion into a second insertion hole formed in the post.

3. The connection structure according to claim 2, whereinthe main body includes:an inclined part including the first shaft and contacting the lower surfaceof the sloped beam; anda bottom part including the second shaft and contacting the upper surface of the post.

4. The connection structure according to claim 3, whereinthe main body includes a side part extending from the bottom part toward the sloped beam,the side part includes a first support hole configured to receive a shaft member of a support metal connector, andthe support metal connector is configured to support a transverse beam or a longitudinal beam.

5. The connection structure according to claim 4, whereinthe second shaft includes a second support hole configured to receive the shaft member of the support metal connector, anda first pitch of an array of holes including the first support hole and the second support hole is equal to a second pitch of a plurality of support metal connector holes of the support metal connector.

6. A roof of a building, the roof comprising:the connection structure according to any one of claims 1 to 5.

7. A roof of a building, the roof comprising:a sloped beam connected by a connection structure to a post that supports the roof;anda tie beam connected to the sloped beam so that a lower surface of the tie beam is located at the same height as a lower surface of the sloped beam,wherein, in the connection structure, the sloped beam is connected to the post by a metal connector arranged between the lower surface of the sloped beam and an upper surface of the post so that the sloped beam crosses the post in plan view.

8. The roof according to claim 7, further comprising:a ceiling portion that covers the sloped beam and the lower surface of the tie beam, wherein the ceiling portion continuously extends along the sloped beam above and below the post.

9. The roof according to claim 7 or 8, further comprising:a linking member arranged perpendicular to the sloped beam,wherein the linking member is joined to the sloped beam so that an upper surface of the sloped beam is located at the same height as an upper surface of the linking member.

10. The roof according to any one of claims 7 to 9, further comprising:an additional beam arranged perpendicular to the sloped beam,wherein the additional beam is connected to the post so that a lower surface of the additional beam is located below the lower surface of the sloped beam.A. CLASSIFICATION OF SUBJECT MATTERE04B l / 26(2006.01)i;E04B l / SS(2006.01)i; E04B 7 / 02(2006.01)1FI: E04B7 / 02 501J; E04B1 / 26 G; E04B1 / 58 50«.: E04B1 / 58 504LAccording to International Patent Classification (IPC) or to both national classification and IPCB.FIELDS SEARCHEDMinimum documentation searched (classification system followed by classification symbols)E04B1 / 26; E04B1 / 58: E04B7 / 02Documentation searched other than minimum documentation to the extent that such documents are included in the fields searchedPublished examined utility model applications of Japan 1922-1996Published unexamined utility model applications of Japan 1971-2023Registered utility model specifications of Japan 1996-2023Published registered utility model applications of Japan 1994-2023Electronic data base consulted during the international search (name of data base and, where practicable, search terms used)DOCUMENTS CONSIDERED TO BE RELEVANTCategory* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. X JP 10-46733 A (TONAN SANGYO KK) 17 February 1998 (1998-02-17) paragraphs [0034], [0035], fig. 4 1 Y paragraphs [0018], [0019], [0021], [0022], [0034], [0035], fig. 1-4 2-3 A paragraphs [0018], [0019], [0021], [0022], [0034], [0035], fig. 1-4 4-5 v A. paragraphs [0017], [0033], [0052], fig. 11 6 Y paragraphs [0017], [0033], [0052], fig. 11 7, 9-10 A paragraphs [0017], [0033], [0052], fig. 11 8 Y JP 6-129022 A (TSUCHIYA HOME KK) 10 May 1994 (1994-05-10) paragraphs [0021], [0022], [0026]-[0028], fig. 1, 4 2-3 A paragraphs [0021], [0022], [0026]-[0028], fig. 1, 4 4-5 Y CD-ROM of the specification and drawings annexed to the request of Japanese Utility Model Application No. 69836 / 1992 (Laid-open No. 32518 / 1994) (MITSUI HOME CO., LTD.) 28 April 1994 (1994-04-28), paragraph [0003], fig. 1, 4, 6 7, 9-10 A paragraph [0003], fig. 1, 4, 6 8| | Further documents are listed in the continuation of Box C. | | See patent family annex. * Special categories of cited documents: “T” later document published after the international filing date or priority “A” document defining the general state of the art which is not considered date and not in conflict with the application but cited to understand the to be of particular relevance principle or theory underlying the invention “E" earlier application or patent but published on or after the international -‘X” document of particular relevance; the claimed invention cannot be filing date considered novel or cannot be considered to involve an inventive step “L” document which may throw doubts on priority claim(s) or which is when the document is taken alone cited to establish the publication date of another citation or other “y document of particular relevance; the claimed invention cannot be special reason (as specified) considered to involve an inventive step when the document is “O” document referring to an oral disclosure, use, exhibition or other combined with one or more other such documents, such combination means being obvious to a person skilled in the ait “P” document published prior to the international filing date but later than document member of the same patent family the priority date claimed Date of the actual completion of the international search 05 October 2023 Date of mailing of the international search report 07 November 2023 Name and mailing address of the ISA / JP Japan Patent Office (ISA / JP) 3-4-3 Kasumigaseki, Chiyoda-ku, Tokyo 100-8915 Japan Authorized officer Telephone No.C. DOCUMENTS CONSIDERED TO BE RELEVANTCategory* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. Y JP 2006-316460 A (GRAND FORM KK) 24 November 2006 (2006-11-24) paragraphs [0018], [0022], fig. 3 9-10 Y JP 4-312637 A (MISAWA HOMES CO., LTD.) 04 November 1992 (1992-11-04) 10 fig. 2 A JP 8-291579 A (SHINYOU KK) 05 November 1996 (1996-11-05) entire text, all drawings 4-5,8International application No.PCT / JP2023 / 031366Patent document cited in search report Publication date (day / month / year) Patent family member)s) Publication date (day / month / year) JP 10-46733 A 17 February 1998 (Family: none) JP 6-129022 A 10 May 1994 (Family: none) JP 6-32518 UI 28 April 1994 (Family: none) JP 2006-316460 A 24 November 2006 (Family: none) JP 4-312637 A 04 November 1992 (Family: none) JP 8-291579 A 05 November 19% (Family: none)

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